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LASER RANGEFINDERS |
POLYUS Research & Development Institute has been developing laser rangefinder technology for 25 years. Modern laser rangefinder technology is indispensable for non-contact and long distance measurements. To detect signals reflected diffusively from surface of natural or man-made targets, Q-switched pulsed solid-state lasers and germanium avalanche photodiodes are used. Now POLYUS R&DI provides high quality and reliable laser rangefinders of various types. |
POLYUS's Laser Rangefinders have excellent technical performance to meet professional use in:
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New POLYUS's Laser Rangefinders Family is simple in use and operates in harshest environments. Advantages of eye-safe Er:Glass laser technology and tacheometry (combination of a laser rangefinder and electronic precision goniometer) raise great possibilities for new applications. | |
| All laser rangefinders have digital display. Unwanted echoes from nearest targets and dummy objects due to atmospheric interference (rain, snow, smoke, etc.) may be gated by minimum range setting from 50 to 5000 m. Rangefinders provide first/last target selection and measurement of range to each of them. |  | |
| Model | EG-LRF Eye-Safe Laser Rangefinder | DIM-3 Compact Laser Rangefinder | KTD-2-2 Topographic Laser Rangefinder |
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| Laser | Er: Glass | Nd: YAP | Nd: YAP |
| Wavelength, µm | 1.54 | 1.079 | 1.079 |
| Measurement Range, m | 50...25000 | 50...15000 | 100...20000 |
| Accuracy, m | ±5.0 | 3.5 | 0.5 |
| Pulse Repetition Rate, s-1 | 1/5 | 1/3 | 1/4 |
| Sight Magnification | x 7.5 | x 7.5 | x 7.5 |
| Operating Temperature, °C | -20...+50 | -40...+50 | -40...+50 |
| Output Interface | RS-232 | serial-parallel code | |
| Power Supply | DC, 12 V, Ni - Cd battery | ||
| Dimensions, mm | 220x200x90 | 75x145x155 | 260x200x90 |
| Weight, kg | 1.9 | 1.3 | 2.7 |
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LISD-2M Laser Velocimeter & Rangefinder measures vehicle speed and range for traffic control. The main advantage of LISD-2M Laser Velocimeter & Rangefinder is the use of narrow-beam light of semiconductor laser operating at wavelength of 0.8 µm and avalanche photodiode as the receiver that allows to distinguish any vehicle in heavy traffic. The device realizes the pulsed method of ranging with automatic calculation of radial velocity. |
LISD-2M Laser Velocimeter & Rangefinder performs:
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| Measurement speed | 0 - 250 km/h |
| Maximum range to car | 400 m |
| Measurement range | 2 - 999 m |
| Range measurement accuracy | ± 0.3 m +0.001 L |
| Measurement time | 0.45 s |
| Directional pattern width | 0.004 x 0.004 rad |
| Field of sight view | 6° |
| Lifetime | 5 x 106 cycles |
| Interface | RS-232 |
| Power supply: - 6V, 4 AA battery (1000 measurements at 20 °C) - external power supply 12 +-2V, 0.2A | |
| Overall dimensions | 210 x 170 x 92 mm |
| Weight | no more 1.3 kg |
| Operating temperature range | -30...+50 °C |
| Safety standard: LISD-2M Laser Velocimeter & Rangefinder is eye-safe device and corresponds to Class 1 | |
| LISD-2M Laser Velocimeter & Rangefinder also registers a signal miss or loss, eliminates measurement errors because of jumping to another vehicle, automatically makes up to 10 repeat measurements in case of unsuccessful previous ones, has audible signaling indicative of operation and exceeding a speed limit. LISD-2M Laser Velocimeter & Rangefinder is designed as a single unit with a built-in battery. At the front of the device there is the sight eyepiece with the built-in digital indicator, the controls, the liquid-crystal display, the mains and interface plugs. The start button is placed at the top of housing. The device is provided by shoulder belt or could be set on a tripod. |
| LISD-2M Laser Velocimeter & Rangefinder is joint development of POLYUS Research & Development Institute and Krasnogorsky Plant and made by the order and with funds of MKNT Joint-Stock Company of Moscow Government |
3 Vvedensky St., Moscow, 117342, Russia
tel:+7 095 3330389 fax:+7 095 3330256
e-mail: mail@polyus.msk.ru